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SBA-15担载极低载量过渡金属催化剂上乙烷选择氧化的研究
发表时间：2011-04-15 浏览量：2229 下载量：857
| 全部作者： | 刘坚，张鹏，赵震，张哲，段爱军，姜桂元 |
| 作者单位： | 中国石油大学（北京）理学院，重质油国家重点实验室；中国石油天然气股份有限公司石油化工研究院 |
| 摘 要： | 用等体积浸渍法制备SBA-15介孔分子筛担载极低载量的系列过渡金属氧化物催化剂，使用氮气吸附、小角X射线衍射（X-ray diffraction, XRD）和紫外激光拉曼光谱对这些催化剂的结构进行表征，并评价这些催化剂对乙烷选择氧化的活性与选择性。实验结果表明：在对乙烷分子氧选择氧化催化反应中，具有相对稳定的全充满、半充满或无d电子表面离子结构的Zn/SBA-15,Fe/SBA-15和V/SBA-15催化剂对醛类含氧化合物的选择性较高。 |
| 关 键 词： | 物理化学；乙烷；选择氧化；催化剂；SBA-15；担载氧化物 |
| Title： | Study on selective oxidation of ethane over SBA-15 supported catalyst with ultra-low loading amount of transitional metal |
| Author： | LIU Jian, ZHANG Peng, ZHAO Zhen, ZHANG Zhe, DUAN Aijun, JIANG Guiyuan |
| Organization： | State Key Laboratory of Heavy Oil, College of Science, China University of Petroleum, Beijing; Petrochemical Research Institute, China National Petroleum Corporation |
| Abstract： | A series of SBA-15 mesoporous zeolite-supported transitional metal oxide catalysts with low loading amount of additives were prepared by the method of incipient-wet impregnation. The structures of the catalysts were characterized by using the techniques of N2 adsorption, low angle X-ray diffraction (XRD) and UV-Raman spectroscopy, and their catalytic performances for the selective oxidation of ethane were investigated. The results demonstrated that for the Zn/SBA-15, Fe/SBA-15 and V/SBA-15 catalysts, the stable ion configuration structures with d-orbitals fully occupied or half occupied or empty are good for the selective oxidation of ethane to aldehydes. |
| Key words： | physical chemistry; ethane; selective oxidation; catalyst; SBA-15; supported oxide |
| 发表期数： | 2011年4月第7期 |
| 引用格式： | 刘坚，张鹏，赵震，等. SBA-15担载极低载量过渡金属催化剂上乙烷选择氧化的研究[J]. 中国科技论文在线精品论文，2011，4（7）：596-600. |
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